Rename to L3CoreService, and add Copernicus, LHCOne, and GWS as new L3 core services

Aleksandr Kurbatov authored 4 months ago and Karel van Klink committed 3 months ago

Corrected to the actual SROS values

Aleksandr Kurbatov authored 4 months ago and Karel van Klink committed 3 months ago

- BFD model should have separate interval setting for RX and TX, hence
`bfd_interval` -> `bfd_interval_rx`, `bfd_interval_tx`;
- BFD model is only relevant to the SBP interface (with all attributes);
- BGP session will only have a simple flag `bfd_enabled` with default
`False`;
- BFD class models moved from `bgp_session.py` to
`service_binding_port.py`.

Split BFD settings off into separate product block and allow for both v4 and v6 settings in a service binding port